#region License
// Copyright 2008-2009 Jeremy Skinner (http://www.jeremyskinner.co.uk)
// 
// Licensed under the Apache License, Version 2.0 (the "License"); 
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at 
// 
// http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software 
// distributed under the License is distributed on an "AS IS" BASIS, 
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
// See the License for the specific language governing permissions and 
// limitations under the License.
// 
// The latest version of this file can be found at http://www.codeplex.com/FluentValidation
#endregion

namespace FluentValidation.Internal {
    using System.Collections;
    using System.Collections.Generic;
    using Results;

    /// <summary>
    /// A simple implementation of IRuleBuilder that just holds a single validation rule.
    /// </summary>
    public class SimpleRuleBuilder<T> : IValidationRuleCollection<T> {
        readonly IValidationRule<T> _rule;

        public SimpleRuleBuilder(IValidationRule<T> rule) {
            _rule = rule;
        }

        #region IValidationRuleCollection<T> Members
        public IEnumerator<IValidationRule<T>> GetEnumerator() {
            return new List<IValidationRule<T>> {_rule}.GetEnumerator();
        }

        IEnumerator IEnumerable.GetEnumerator() {
            return GetEnumerator();
        }

        public IEnumerable<ValidationFailure> Validate(ValidationContext<T> context) {
            return _rule.Validate(context);
        }
        #endregion
    }
}